75 south street, hopkinton, ma 01748 ? 800-982-5737 ? 508-435-6831 ? fax 508-435-5289 ? www.valpeyfisher.com ? revd0808 1 vfja100 jitter attenuator to 1ghz 25.4x22mm smd, pecl/lvpecl features ? 1.0 ghz output frequency range ? ultra low jitter: <0.200 ps ? meets oc-192 jitter transfer, generation, and tolerance ? low power: <220mw typical ? low profile smd package ? compliant with telcordia gr-1244-core, gr-253- core, itu-t g.813, and itu-t g.8261 electrical s p ecifications description the vfja100 is a jitter attenuator capable of provid ing an output frequency up to 1 ghz. an internal synthesizer locks to the input reference clock and mult iplies it up to the desired output frequency. the output frequency is determined by a vcxo designed for a wide pull range. an internal voltage regulator offers improved stability and noise performance. the output is c onfigured as a differential lvpecl signal and requires external termination resistors. the vfja100 is available in a 25.4mm x 22 mm surface mount package. parameter symbol condition min typ max unit note input frequency fref 0.008 100 mhz output frequency fout 50 1000 mhz operating temperature range t 0 -40 70 +85 c order code b order code g output signal pecl / lvpecl supply voltage vcc 3.15 3.30 3.45 v jitter 12khz to 20mhz 0.2 0.8 ps ssb phase noise 100hz 1khz 10khz 100khz -90 -118 -142 -145 dbc/hz @ 622.08mhz applications ? sonet / sdh / atm ? 10 gigabit ethernet ? forward error correction (fec) rohs status
75 south street, hopkinton, ma 01748 ? 800-982-5737 ? 508-435-6831 ? fax 508-435-5289 ? www.valpeyfisher.com ? revd0808 2 vfja100 jitter attenuator to 1ghz 25.4x22mm smd, pecl/lvpecl electrical specifications parameter symbol condition min typ max unit note supply current icc 50 ohm load 62 75 ma load 50 ohm to vcc-2v or thevenin equivalent duty cycle @ 50% 45 50 55 % logic ?1? level voh vcc-0.96 vcc-0.81 v logic ?0? level vol vcc-1.85 vcc-1.65 v lock range 50 100 ppm input level ac coupled internally 0.4 3.3 v p-p enable / disable function input high (>2.5v): disabled input low (<0.5v) or floating: active lvcmos enable / disable time te/td 100 ns parameter symbol condition min typ max unit note supply voltage vcc -0.5 +5.5 v storage temperature ts -55 +105 c how to order absolute maximum ratings vfja100 input frequency xxx.xxxx mhz output frequency, xxxx.xxxx mhz temperature range code specification b 0 c to +70 c g -40 c to +85 c
75 south street, hopkinton, ma 01748 ? 800-982-5737 ? 508-435-6831 ? fax 508-435-5289 ? www.valpeyfisher.com ? revd0808 3 vfja100 jitter attenuator to 1ghz 25.4x22mm smd, pecl/lvpecl parameter specification mechanical shock per mil-std-202, method 213, condition e thermal shock per mil-std-883, method 1011, condition a vibration per mil-std-883, method 2007, condition a soldering conditions 260 c for 10s max hermetic seal leak rate less than 5x10 - 8 atm.cc/s of helium (crystal only) 3 4 5 2 1 6 7 reference clock input c1 .01 uf vcc gnd r1 180 ? fou t nfout r2 180 ? disable nc environmental and mechanical connection diagram mechanical outline pin # connection 1 vref 2 n/c 3 vcc 4 disable 5 fout 6 fout 7 gnd
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